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SIMIAN VIRUS 40 MESOTHELIOMA - SV40 WORKING GROUP administrator 13 مناظر • پہلے 2 سال

SIMIAN VIRUS 40 MESOTHELIOMA
➡️ http://MesotheliomaUSA.net

The relationship between mesothelioma and Simian virus 40 (SV40) is one that continues to be investigated. Some contend that SV40 infection can cause mesothelioma. Others have evidence that disputes this claim. The conflicting evidence suggests more research is needed.

Mesothelioma is a rare cancer that usually develops in the lining of the lungs and its primary cause is asbestos exposure. SV40 is a virus that contaminated polio vaccines between the 1950s and 1960s. Although the SV40-contaminated vaccines were successful in reducing the incidence of polio, questions regarding its safety began to emerge shortly after its use.

Background of Simian Virus 40.

Simian virus 40 is a virus that was initially discovered in 1960 in rhesus monkey kidney cells. At the time, Dr. Jonas Salk’s and Dr. Albert Sabin’s polio vaccines were made from these cells and the mass immunization program for polio had already begun. From 1955 to 1963, an estimated 10 to 30 million people in the U.S. were inadvertently exposed to SV40-contaminated polio vaccinations.

The exposure was so significant that researchers believe 80 to 90 percent of all U.S. children under the age of 20 had received at least one polio vaccination potentially contaminated with SV40 during those years.

When 1961 reports indicated the injection of SV40 into hamsters could cause tumors, the U.S. government instituted a screening program requiring all new polio vaccinations to be free of SV40. However, vaccinations made prior to this regulation were not withdrawn from the mass immunization program and children continued to be exposed until 1963.

Conflicting Evidence About SV40.

In the early 1960s, researchers found SV40 had the ability to transform hamster and human cells to induce tumor formation. After the discovery of SV40-like DNA sequences in mesothelioma samples in 1994, investigators have continued to test the causal relationship between SV40 and malignant pleural mesothelioma.

The amount of research that supports a causal relationship between mesothelioma and SV40 is significant enough to warrant concern. In animal testing, 100 percent of those injected with SV40 into the pleural space developed mesothelioma within three to six months. One study found that 60 percent of malignant mesothelioma cases in the U.S. contain SV40. While another study suggests 80 percent of cases contain the virus.

Tumor Studies Vary Greatly.

In some studies, researchers have found human mesothelial cells to be uniquely susceptible to SV40, and have suggested that the virus and asbestos may act as co-carcinogens. SV40 has been detected in human tumors in more than 40 different laboratories and many of the reports from these labs say they found SV40 in mesothelioma tumors. Although there is evidence of SV40 acting as a causative agent in the development of mesothelioma, there is an equal amount of evidence arguing against this causal relationship.

SV40 Working Group.

With the intent of resolving the conflicting information on mesothelioma and SV40, the International SV40 Working Group was formed in 1997. The group included the majority of laboratories studying SV40 in human tissues.

In a study funded by the National Cancer Institute, nine laboratories agreed to participate in the study, which tested tissue samples for traces of SV40. Each laboratory was given a set of 25 human mesothelioma samples and 25 normal lung tissue samples.

The samples were not labeled and each laboratory used their own method for detecting SV40. Results showed that none of the mesothelioma samples were consistently positive for SV40, suggesting a lack of evidence for a causal relationship between mesothelioma and SV40.

Vaccination Did Not Increase Cancer Incidence.

Other studies showed similar results. In one evaluation of children born during the years that SV40-contaminated vaccinations were used, an overall difference in cancer incidence was not reported when comparing the group to children who received uncontaminated vaccinations.

A 2011 study concluded exposure to SV40 is not enough to cause cancer on its own in humans, but that it might co-contribute to the development of cancer when a person is exposed to other carcinogens such as asbestos.

SIMIAN VIRUS 40 MESOTHELIOMA - SV40 WORKING GROUP
https://www.youtube.com/watch?v=OwaTqioSKe4
https://www.youtube.com/channe....l/UCqL1ImVqMKM51W4WC

#simianvirus40mesothelioma #therelationshipbetweensimianvirus40andmesothelioma #simianvirus40 #sv40 #backgroundofsimianvirus40 #conflictingevidenceaboutsv40 #tumorstudiesvarygreatly #sv40workinggroup #vaccinationdidnotincreasecancerincidence

🔗 https://www.asbestos.com/mesot....helioma/simian-virus

5 Year Survival Mesothelioma - Mesothelioma Survival Rate administrator 1 مناظر • پہلے 2 سال

5 Year Survival Mesothelioma
➡️ http://MesotheliomaUSA.net

You will find information about the number of people who are diagnosed with mesothelioma each year. You will also read general information on surviving the disease. Remember, survival rates depend on several factors. Use the menu to see other pages.

It is estimated that about 3,000 people are diagnosed with mesothelioma each year in the United States. Mesothelioma occurs more often in men. It is also more common in white and Hispanic people than in Asian American or African American people. The average age for a pleural mesothelioma diagnosis is 72. The number of people diagnosed with mesothelioma in the United States is no longer increasing as it has been in previous decades, and it is now decreasing slightly in men.

The 5-year survival rate tells you what percent of people live at least 5 years after the cancer is found. Percent means how many out of 100. The overall 5-year survival rate for people with mesothelioma is 10% because it is usually diagnosed at a late stage.

If the cancer is found at an early, localized stage, the 5-year survival rate for people with mesothelioma is 18%. If the cancer has spread to nearby areas and/or lymph nodes, the 5-year survival rate is 12%. If the cancer has spread to distant parts of the body, the 5-year survival rate is 7%.

The length of time a person lives after being diagnosed with mesothelioma depends on many factors, including the person’s age. People diagnosed at a younger age often live longer. The type of mesothelioma can also influence survival rates. In particular, some people with peritoneal mesothelioma have a tumor that grows very slowly. People with peritoneal mesothelioma often live longer. People who are able to receive surgery generally live longer than people whose cancer has spread too far to be surgically removed.

It is important to remember that statistics on the survival rates for people with mesothelioma are an estimate. The estimate comes from annual data based on the number of people with this cancer in the United States. Also, experts measure the survival statistics every 5 years. So the estimate may not show the results of better diagnosis or treatment available for less than 5 years. Talk with your doctor if you have any questions about this information.

Statistics adapted from the American Cancer Society website (accessed January 2021).

5 Year Survival Mesothelioma - Mesothelioma Survival Rate
https://www.youtube.com/watch?v=PJA2RgIJ4Po
https://www.youtube.com/channe....l/UCPhQmbwbQCspqO0e1

#5yearsurvivalmesothelioma #5yearsurvivalpleuralmesothelioma #5yearsurvivalratemesothelioma #howlongcanyoulivewithmesotheliomacancer #mesotheliomalongestsurvival #peritonealmesothelioma5yearsurvival #whatarethechancesofsurvivingmesothelioma

🔗 https://www.cancer.net/cancer-....types/mesothelioma/s

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